We should use the MPIC_LARG_VECTORS flag while intializing the MPIC.
This prevents us from eating in to hardware vector number space (MSIs)
while setting up internal sources.
Signed-off-by: NVarun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>